836 Answered Questions for the topic Calculus 1

Calculus 1

10/27/16

F(x)=sin(x+pi/2), 0<x= 5pi/4?
f(x)=sin(x+pi/2), 0<x≤ 5pi/4 a. max is 1 at x=(7/8)pi, min is -1 at x=(1/8)pi b. max is 1 at x=0,min is -1 at x=pi c. max is 1 at x=(1/8)pi,min is -1 at x=(7/8)pi d. max is 1 at x=(9/8)pi,min is... more
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Calculus 1

10/27/16

y=ln(x^2)(e^x)
calculate y'
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Calculus 1

10/26/16

Derivative
Solve for derivative and find inflection points of f(x)= x (x+3) ^(1/2)....Please go step by step of simplifying derivative because I struggle on that involving square roots.
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Calculus 1

10/26/16

Calculus Question- Find the open interval
Find the open interval(s) on which the function f(x) = cos^2(2x)  is increasing in the interval (0,2π). Round numerical values in your answer to three decimal places.
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Calculus 1

10/25/16

Can you square root an equation for u-sub to simplify down
can i take the square root of this calculus equation to simplify my u-sub in the expression -(1/2)du = (e^-x)^2 dx in other words, can i take the sq root of both sides to get (e^-x)dx by itself... more
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Calculus 1

10/24/16

Critical Numbers
Find all critical numbers of of the function f (θ) = 2sec θ + tanθ, 14π < θ < 16π .
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Calculus 1

10/24/16

Cubic Function
Find the cubic function of the form f (x) = ax^3 + bx^2 + cx + d, where a ≠ 0 and the coefficients a,b,c,d are real numbers, which satisfies the conditions given below. Relative maximum: 3,0 ;... more
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Calculus 1

10/23/16

Calculus- Inflection Pointa
Find the points of inflection and discuss the concavity of the function f(x) = −8x − 2cosx on the interval (0,2π )
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Calculus 1

10/23/16

Calculus- Concavity!
Determine the open intervals on which the graph of the function y = 3x − tanx, (-π/2, π/2i) s concave upward or concave downward.
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Calculus 1

10/23/16

Calculus question!
A ladder 25 feet long is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of 2 feet per second. Consider the triangle formed by the side of the... more
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Calculus 1

10/23/16

Calculus- Critical Numbers
1) Find critical numbers of the problems below:  A) Find all critical numbers of the function f(x) = sin^2(6x) + cos(6x), 0 < x < π/3.    B) Find all critical numbers of of the function f... more
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Calculus 1

10/23/16

Calculus- Find the open interval
Find the open interval(s) on which the function f(x) = cos^2(2x)  is increasing in the interval (0,2π). Round numerical values in your answer to three decimal places.
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Expert Answers •1

10/22/16

In your own words, explain why the method of dividing complex numbers works. What property justifies this process?
 In your own words, explain why the method of dividing complex numbers works. What property justifies this process?
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10/17/16

A lamp is located 3 units to the right of the y-axis and a shadow is created by the elliptical region x^(2)+4y^(2)<=5.
If the point (-5,0) is on the edge of the shadow, how far above the x-axis is the lamp located   i got the y' (slope) from differentiating the equation and get y'= -x/4y, but i cannot substitute... more
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Calculus 1

10/11/16

Calc I Urgent!!
The quantity, q, of a certain skateboard sold depends on the selling price, p, in dollars, so we write q = f(p). You are given that f(140) = 15400 and f '(140) = −60. (a) What does f(140) = 15400... more
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Calculus 1

10/10/16

Find the absolute extrema of function on closed interval
g(x)=7 sec x [=pi/6,pi/3]
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Calculus 1

10/07/16

lim as h approaches 0: (sqrt(4+h))- 2)/h
Please help me understand how to do this problem.
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Expert Answers •2

10/07/16

Find Relative Max and Relative Min
F(x) = 18cos(2x) + 18x  on the interval (0,2pi)
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Expert Answers •1

10/07/16

Find where the function is increasing and decreasing
The derivative of a polynomial is f'(x) = (x-3)^2 (x+7)
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Calculus 1

10/05/16

Find the derivative of the given function. y=20z^2+1/18z
Find the derivative of the given function. y=20z^2+1/18z
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Calculus 1

10/05/16

derivative of 6/lnx
Need worked out solution and answer.
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Calculus 1

10/05/16

derivative of sin(5lnx)
I need the answer and worked out solution.
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Calculus 1

10/04/16

Tickets for a raffle cost $ $9. There were 632 tickets sold. One ticket will be randomly selected as the winner, and that person wins $ $2000 and also the per
Tickets for a raffle cost $9. There were 632 tickets sold. One ticket will be randomly selected as the winner, and that person wins $2000 and also the person is given back the cost of the ticket.... more
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Calculus 1

10/04/16

Implicit Differentiation - Calculus
 Need to find slope of tangent line to curve 5(x^2 + y^2)^2 = 169(x^2-y^2) at point (3,-2) . It is implicit differentiation but I keep getting the wrong value at 3,-2. I'm not sure if I am... more
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10/02/16

explain how the graph of y=4(cube root of (x+2))-5 can be obtained by transforming the graph of y=cube root of x
Need help explaining how to do this, I am not understanding how exactly the transformation can be explained
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